ADSM-L

Re: Taking dbbackups on remote TSM servers

2004-05-07 15:01:43
Subject: Re: Taking dbbackups on remote TSM servers
From: Alex Paschal <AlexPaschal AT FREIGHTLINER DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 7 May 2004 12:00:18 -0700
Anoop,

To restore, you'll have to xfer it off of tape back onto disk, then

dsmserv restore db devc=fileclass volume=/my/path/filename commit=yes

Alex

-----Original Message-----
From: Anoop Das [mailto:danoop AT IN.IBM DOT COM]
Sent: Thursday, May 06, 2004 5:32 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Taking dbbackups on remote TSM servers


Alex, the "restore dbbackup" command requires that the the dbbackup volume
be listed in the volhist file. Once the dbbackup from disk is backed up
onto tape using dd or tar, I can add this tape volser into the volhist
file. But how will the "restore dbbackup" command recognise the format
written in the tape. Also  as I know, dbbackup restore mandates the
availability of the dbbackup on the catridge.

Thanks and Regards

Anoop T.Das




                      Alex Paschal
                      <AlexPaschal@FREIGH        To:
ADSM-L AT VM.MARIST DOT EDU
                      TLINER.COM>                cc:
                      Sent by: "ADSM:            Subject:  Re: Taking
dbbackups on remote TSM servers
                      Dist Stor Manager"
                      <[email protected]
                      DU>


                      05/06/2004 02:09 AM
                      Please respond to
                      "ADSM: Dist Stor
                      Manager"




Anoop:

Other than server-server virtual volumes, here's a couple other blue sky
options.

You might consider taking your dbbackup to disk, then move that file over
your network to the other machine.  nfs, sftp, scp, ttcp, those should all
work to get your dbbackup file moved.  Then you can just dd or tar it onto
tape, if you like.

Or you could somehow use iSCSI to serve up the tape drive itself over the
WAN, but I don't really think that's such a great idea.

The reason I'd use interim disk is our WAN links are pretty small and slow,
and keeping a mount point tied up for long enough to xfer 80GB worth of
database, whether it be via server-server or iSCSI, doesn't seem to make
much sense to me.  And I probably wouldn't use server-server for the same
reason, I don't need a dbbackup running all day and pinning the recovery
log.  Of course, your 300KM line could be gigabit with LAN level latency,
for all I know. <grin>

Alex Paschal
Freightliner, LLC
(503) 745-6850 phone/vmail


-----Original Message-----
From: Anoop Das [mailto:danoop AT IN.IBM DOT COM]
Sent: Wednesday, May 05, 2004 7:56 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Taking dbbackups on remote TSM servers


Hi all

I have two TSM servers connected to LTO 3583 located 300 KMs apart and the
dbabckup for the same happens locally. I then send the dbbackups to
offsite( Site-A to Site-B and viceversa) on a daily basis.

Is it possible to take the dbbackup of server-A to the site-B drive and
server-B to the site-A LTO drive?  This will relieve me of the manual
activity of sending the dbbackup tapes taken locally to offsite daily. Also
being a scheduled activity there is no chance for failures.

Any help is highly appreciated.

Anoop

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